added /static to the list of directories that the web server must be able to write to.
Merge pull request #175 from stopfstedt/rb2.3

added /static to the list of directories that the web server must be abl...
Merge pull request #176 from ilios/rb2.3

reintegrate rb2.3 into master
changed sequence block duration unit from minutes to days. refs #3781
added entry to language files.
relabeled duration input field. refs #3781
added translation keys for "day" and "days". refs #3781
relabeled unit for duration output in sequence block view from hours to days. refs #3781
Merge pull request #177 from ilios/rb2.3

reintegrate release branch rb2.3 into master
added course clerkship type info to course details display. refs #3784
Merge pull request #178 from ilios/rb2.3

added course clerkship type info to course details display. refs #3784
modified form validation rules to comply with AAMC business rules for session blocks representing clerkship courses. refs #3782
fixed bug that was causing sequence blocks to lose state for courses after repeated updates when courses did not change.
fixed minor regression in updating a sequence block with a previous unselected course association.
fixed another edge case related to updating the course selection in sequence blocks.
Merge pull request #179 from ilios/rb2.3

reintegrate release branch rb2.3 into master
fixed academic year display in report view. refs #3790
fixed server-side input validation for create/update sequence block actions. refs #3782
Merge pull request #180 from ilios/rb2.3

reintegrate release branch rb2.3 into master
fixed regression in client-side sequence block form validation. refs #3798